Get Preview URL

To get the preview url for a file, you would have to use getPreviewUrls method of the Client class. Method definition as follows:
Apex
global static List<string> getPreviewUrls(
    List<Resource> resources,
    PreviewParams params,
    String library,
    String runAs
)
global static List<string> getPreviewUrls(
    List<Resource> resources,
    PreviewParams params,
    String library,
    String runAs
)
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Input Parameters
a List of Resource﻿ 
a custom type PreviewParams
PreviewParams has a Boolean allowDownload property
String library
String runAs
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Output
List<String>
Example
Apex
List<String> previewUrls = new List<String>();
cldfs.PreviewParams test = new cldfs.PreviewParams();
test.allowDownload = true;

previewUrls = cldfs.Client.getPreviewUrls(
  new List<cldfs.Resource>{
    new cldfs.Resource(
      '001XXXXXXXXXXX',
      'file',
      'image.png',
      'library',
      'driveId'
    )
  },
  test,
  'library',
  'integrationUser'
);

List<String> previewUrls = new List<String>();
cldfs.PreviewParams test = new cldfs.PreviewParams();
test.allowDownload = true;

previewUrls = cldfs.Client.getPreviewUrls(
  new List<cldfs.Resource>{
    new cldfs.Resource(
      '001XXXXXXXXXXX',
      'file',
      'image.png',
      'library',
      'driveId'
    )
  },
  test,
  'library',
  'integrationUser'
);
﻿
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CloudFiles Client
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